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    Photoresponsive articles comprising multilayer spectral sensitization systems
    1.
    发明授权
    Photoresponsive articles comprising multilayer spectral sensitization systems 失效
    包含多层光谱敏感系统的光电文章

    公开(公告)号：US3622316A

    公开(公告)日：1971-11-23

    申请号：US3622316D

    申请日：1969-03-04

    Applicant: POLAROID CORP

    Inventor： BIRD GEORGE R ,  ROSENOFF ALAN E

    IPC: G03C1/12 ,  G03C1/28 ,  G03C1/29 ,  G03G5/06 ,  G03G5/09 ,  G03G5/08

    CPC classification number: G03G5/09 ,  G03C1/12 ,  G03C1/28 ,  G03C1/29 ,  G03G5/067

    Abstract: Photoresponse of a given photosensitive medium is enhanced by utilizing a spectral sensitization system which comprises a layer of a cyanine spectral sensitizing dye to said photosensitive medium and, superposed thereover, at least one layer of an energy absorbing and transmitting material which possesses a higher intrinsic energy absorption frequency than the energy absorption frequency of the immediately preceding layer, and an intrinsic energy transmitting frequency which overlaps the energy absorption frequency of the next preceding layer, thereby providing a radiationless circuit capable of transmitting photonexcitation-derived energy to said photosensitive medium.

    Photoresponsive articles comprising pseudo-polymeric spectral sensitization systems
    7.
    发明授权
    Photoresponsive articles comprising pseudo-polymeric spectral sensitization systems 失效
    包含PSEUDO-POLYMERIC光谱敏感系统的光电文章

    公开(公告)号：US3622317A

    公开(公告)日：1971-11-23

    申请号：US3622317D

    申请日：1969-04-16

    Applicant: POLAROID CORP

    Inventor： BIRD GEORGE R ,  ROSENOFF ALAN E

    IPC: C09B23/06 ,  G03C1/12 ,  G03C1/14 ,  G03G5/06 ,  G03G5/08 ,  G03C1/28

    CPC classification number: C09B23/06 ,  G03C1/12 ,  G03C1/14 ,  G03G5/067 ,  G03G5/0674 ,  G03G5/0698

    Abstract: Photoresponse of a given photosensitive element is enhanced by utilizing a spectral sensitization system adsorbed to said photosensitive element, said system comprising a layer of spectral sensitizing dye material comprising nonrepetitive segments, each of said segments more distal from said photosensitive element than the preceding segment possessing a higher intrinsic energy absorption frequency range than the energy absorption frequency range of the immediately preceding segment, and an intrinsic energy transmitting frequency range which overlaps the energy absorption frequency range of the next preceding segment thereby providing a radiationless circuit capable of transmitting photon-excitation-derived energy to said photosensitive element.

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